'''lista = [1,23,234,45,4645,65,6756,7,567,5,7]
lista.sort()
print(lista)
'''
'''
def add(x, y, f):
    return f(x) + f(y)
res = add(3, -6, abs)
print(res)'''

'''
# 生成随机验证码
import random
checkcode = ''
for i in range(4):
    current = random.randrange(0,4)
    # print(i,current)
    if current !=i:
        tem = chr(random.randint(65,90))
        # print(tem)
    else:
        tem  = random.randint(0,9)
        # print(tem)
    checkcode += str(tem)
print(checkcode)
'''


